this post was submitted on 11 May 2025
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You should be able to make a complete backup of a DVD to an iso file using dd.
https://www.systutorials.com/create-iso-image-on-linux/
But then would I be able to read them on any computer without burning them?
Yes. You could use vlc or even as an iso file just open them as a virtual drive.
I think VLC can also open them on Android.
yep, unfortunately it doesn't seem to be able to read from actual drives though.
That would get you an exact copy of the disk with everything on it. And also, while 200 DVDs sounded a lot, it's "only" 860GB (assuming 4,3GB/disk which I think is the most common for movies), so it's not stupidly expensive either. Obviously you'll want a RAID setup and most likely backups for that, so it's more than just a single 1TB drive, but still quite manageable.
Actually, 8.5GB. Movies are typically on dual layer discs.
They would probably compress pretty well, I imagine.
Majority of the data (video) is already compressed as MPEG-2 so I'd think it doesn't compress very well. But if you don't have enough storage it's always an option to re-encode video with something more modern and achieve smaller file sizes from that. But that also removes at least DVD menu and other 'format dependent' options.
Yeah, but I'm assuming there are many gains to be had if your compression method doesn't need to be stream decoded for real time playback.
I used K3b for that. It can copy to image and even ignore errors if necessary, though I didn't yet have to try that. It's 8.5GB per disc, so get some 2TB HDD for that.